The SteriPEN Pre-Filter filters fits on Nalgene® and wide-mouth water bottles and filters out particulates and debris. When in use, pour water through the durable 40×40 micron screen filter cartridge to fill the bottle.
Fits on to bottles such as Nalgene Wide-mouth models and others using a similar size top. For other size bottle tops see the Fits-All filter
The SteriPEN Pre-Filter removes debris from water. Then you’re ready to purify the water with a SteriPEN UV water purifier so the UV light can effectively destroy the microorganisms in the water.
After filtering, remove the filter cartridge from the Pre-Filter, insert the SteriPEN into the center of the filter, flip the bottle, and agitate the water until the SteriPEN indicates the treatment is complete.
Replacement filter cartridges available.
We strive to dispatch all orders made before 2pm same working day.
1. Standard Delivery (1-3 Days) £4.50 (FREE when you spend £75)
2. Interlink Next Working Day £6.50 (£1.99 when you spend £75)
3. Royal Mail 24 (1-3 Days) £4.50 (£1.99 when you spend £75)
5. Royal Mail Saturday Delivery £8.99
6. International Shipping Rates (Click Here)
Rates above apply to UK Mainland, rates for shipping large or bulky items to Highlands or Islands may be higher.
View our full UK Delivery or Returns/Exchanges information